Secondly, about burnout and turnover. Let's discuss from an empirical standpoint. The number one proximal cause of turnover is lack of "commitment". There are longitudinal empircal studies which demonstrate this. Job satisfaction is important as well; however commitment dominates every other factor.
Hence, it is important for managers to generate commitment, one way or another. I believe from these aspects, Rickover truly understood engineers and technical folks... In fact, he went against the US military books, and emphasised Individual initiative and judgement, regardless of what the rulebooks said. In a way, Rickover was able to work around the navy rules to create sufficient commitment to get complicated jobs done.